{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:5MK4PYQBHCNUMIQOX5QKMP2JQ4","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"30d41485f4d8bfe44ffe7c3bece38722d020934ac21a3bc4c1a882dc732b9570","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-09-23T09:37:26Z","title_canon_sha256":"dc7721e10b6ec2521e91035224bb13cbf91b07c718a28d920158ec8bdf8229f2"},"schema_version":"1.0","source":{"id":"1409.6458","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.6458","created_at":"2026-05-18T02:25:41Z"},{"alias_kind":"arxiv_version","alias_value":"1409.6458v1","created_at":"2026-05-18T02:25:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.6458","created_at":"2026-05-18T02:25:41Z"},{"alias_kind":"pith_short_12","alias_value":"5MK4PYQBHCNU","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"5MK4PYQBHCNUMIQO","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"5MK4PYQB","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:c05296450e4b02f703ce8df901fbfda9bc574a6f6d456ecc07dd6b58a05cfa47","target":"graph","created_at":"2026-05-18T02:25:41Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We explore new regimes of laser interferometric gravitational-wave detectors with multiple optical carriers which allow to reduce the quantum noise of these detectors. In particular, we show that using two carriers with the opposite detunings, homodyne angles, and squeezing angles, but identical other parameters (the antisymmetric carriers), one can suppress the quantum noise in such a way that its spectrum follows the Standard Quantum Limit (SQL) at low frequencies. Relaxing this antisymmetry condition, it is also possible to slightly overcome the SQL in broadband. Combining several such pair","authors_text":"Farid Ya.Khalili, Haixing Miao, Mikhail Korobko, Nikita Voronchev","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-09-23T09:37:26Z","title":"Paired carriers as a way to reduce quantum noise of multi-carrier gravitational-wave detectors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.6458","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:25876473d5668f2260539b98fc4de69e4d1eb9837226201138d2c73909ce63f2","target":"record","created_at":"2026-05-18T02:25:41Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"30d41485f4d8bfe44ffe7c3bece38722d020934ac21a3bc4c1a882dc732b9570","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2014-09-23T09:37:26Z","title_canon_sha256":"dc7721e10b6ec2521e91035224bb13cbf91b07c718a28d920158ec8bdf8229f2"},"schema_version":"1.0","source":{"id":"1409.6458","kind":"arxiv","version":1}},"canonical_sha256":"eb15c7e201389b46220ebf60a63f49871b26f2f141ef3f9f1fb75bd71b520760","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eb15c7e201389b46220ebf60a63f49871b26f2f141ef3f9f1fb75bd71b520760","first_computed_at":"2026-05-18T02:25:41.846684Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:25:41.846684Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Dw/Ep0Ps8su75ZS65qRSve2XCPTFHQ0ajHLSswTBCpUyx65aYfDlcPn/Fl8zM8AW+v7iALoPpncHrJMvXIoADA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:25:41.847168Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.6458","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:25876473d5668f2260539b98fc4de69e4d1eb9837226201138d2c73909ce63f2","sha256:c05296450e4b02f703ce8df901fbfda9bc574a6f6d456ecc07dd6b58a05cfa47"],"state_sha256":"0de4203b715a3f2dc27a6f7a2ad4bcf8fb879a9c20990da06d8d6363ccca0a57"}